CONFERS Lexicon

An action which stops an on-board process and, if necessary, initiates an alternate process to put the servicer spacecraft and client space object in a safe and collision-free state.

An agreed-upon three-dimensional space centered on the passive vehicle (Client Space Object or Servicing Vehicle) in which unintentional contact is possible within the passive anomaly recovery time and ranging and active relative orbit control is needed for safety. Synonym for Proximity Operations Control Volume

The act of effecting a rigid connection between a Servicing Spacecraft and a Client Space Object with the aid of a robotic arm.

The act of establishing a physical connection between two space objects.

An entity/organization procuring the service.

The space object being serviced by the servicer spacecraft.

An operation executed by a space object relative to another space object to avoid contact for a specified amount of time.

A combined client space object and servicer spacecraft after Docking or Berthing.

An on-orbit service in which the servicer spacecraft maintains attitude stability for the combined stack.

On-orbit services enabling increased duration of client operations as a Combined Stack.

When a servicing spacecraft executes a controlled trajectory to effect a rigid connection with a Client Space Object.

Sensing of a Client Space Object by a servicer spacecraft.

A minimum 3-D volume of space around the client space object defined based on navigational uncertainty of each Rendezvous, Proximity Operations and Docking phase or any additional operational volume into which a servicer spacecraft may not enter without approval.

On-orbit activities to physically attach objects to each other.

Activities by a servicer spacecraft or servicing agent on a client space object which require rendezvous and/or proximity operations.

Configured with navigation fiducials and/or grapple/capture interfaces and/or servicing interfaces.

Orbital maneuvers performed between a servicer spacecraft and a client space object on a relative planned path within a pre-defined Approach Volume.

Synonym for Approach Volume.

Changing the orbit of the Client Space Object by a Servicing Vehicle.

Process wherein two space objects (artificial or natural body) are intentionally brought close together through a series of orbital maneuvers at a planned time and place.

An entity/organization that provides On-Orbit Servicing operations.

Spacecraft performing the servicing action.

Action provided by Servicer Spacecraft to the Client Space Object, including but not limited to: inspection, capture, docking, berthing, relocation, refueling, life extension, removal, combined stack control, repair, upgrade, assembly, manufacturing, un-docking, un-berthing, release.